[gentoo-user] libxml2 has 7 different versions in slot 2?

[n952162]

This script:

      equery -CN d libxml2 | sed -n -e '/^[  ]/d' -e 's/[^(]*(//' -e
's/)[^)]*$//' -e 's,[^/]*/,,' -e '/:/p' | sort -u

gets the package atom of each version of libxml2 in slot 2:

    libxml2-2.4.12:2
    libxml2-2.4.16:2
    libxml2-2.6.21:2
    libxml2-2.7.7:2[abi_x86_32(-)?,abi_x86_64(-)?,abi_x86_x32(-)?,abi_mips_n32(-)?,abi_mips_n64(-)?,abi_mips_o32(-)?,abi_s390_32(-)?,abi_s390_64(-)?]
    libxml2-2.7.8:2[static-libs(+)?]
    libxml2-2.9.1-r4:2[abi_x86_32(-)?,abi_x86_64(-)?,abi_x86_x32(-)?,abi_mips_n32(-)?,abi_mips_n64(-)?,abi_mips_o32(-)?,abi_s390_32(-)?,abi_s390_64(-)?]
    libxml2-2.9.10:2[abi_x86_32(-)?,abi_x86_64(-)?,abi_x86_x32(-)?,abi_mips_n32(-)?,abi_mips_n64(-)?,abi_mips_o32(-)?,abi_s390_32(-)?,abi_s390_64(-)?]
    libxml2:2
    libxml2:2[abi_x86_32(-)?,abi_x86_64(-)?,abi_x86_x32(-)?,abi_mips_n32(-)?,abi_mips_n64(-)?,abi_mips_o32(-)?,abi_s390_32(-)?,abi_s390_64(-)?]

Those aren't slot collisions?